| 摘要 |
<p>Pyridine carboxylic acid derivs. of formula (I), in which R is H, halogen or other, R1 is H, ONO2, R2ONO2 or other, R2 is a 1-6C hydrocarbon chain and n is 0-6, are made by reacting a pyridine carboxylic acid hydrzide of formula (II) with an amine of formula H2N-(CH2)2-R1 (III) in presence of an agent such as mercuric oxide, in inert solvent at between ambient and reflux temp..</p> |
